本文考虑悬吊结构周边变形的影响，推导出了悬索桥扭转的基本微分方程。
The effects of the transverse distorsion of suspended structures are considered in this paper, and fundamental differential equation of torsion for suspension bridges is derived.
利用此基本解并考虑桩土位移协调条件，提出了层状地基中单桩扭转变形分析的解析方法；
These solutions are then combined with the displacement compatibility between the pile and the surrounding soil to analyze the torsional behaviour of a single pile.
本文介绍了用广义坐标法推导的梯形截面箱梁约束扭转计算的基本微分方程；
Using the generalized coordinates method, fundamental equations for the restrained-torsion of thin-walled box girders of trapezoidal cross section are derived.
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